Re: [PATCH v2 1/2] drm/vkms: check plane_composer->map[0] before using it

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On 04/15, Tales Lelo da Aparecida wrote:
> Fix a copypasta error. The caller of compose_plane() already checks
> primary_composer->map. In contrast, plane_composer->map is never
> verified here before handling.
> 
> Fixes: 7938f4218168 ("dma-buf-map: Rename to iosys-map")
> Reviewed-by: André Almeida <andrealmeid@xxxxxxxxxx>
> Signed-off-by: Tales Lelo da Aparecida <tales.aparecida@xxxxxxxxx>
> ---
> v2: detail the commit message with more information
> 
>  drivers/gpu/drm/vkms/vkms_composer.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/vkms/vkms_composer.c b/drivers/gpu/drm/vkms/vkms_composer.c
> index c6a1036bf2ea..b47ac170108c 100644
> --- a/drivers/gpu/drm/vkms/vkms_composer.c
> +++ b/drivers/gpu/drm/vkms/vkms_composer.c
> @@ -157,7 +157,7 @@ static void compose_plane(struct vkms_composer *primary_composer,
>  	void *vaddr;
>  	void (*pixel_blend)(const u8 *p_src, u8 *p_dst);
>  
> -	if (WARN_ON(iosys_map_is_null(&primary_composer->map[0])))
> +	if (WARN_ON(iosys_map_is_null(&plane_composer->map[0])))
>  		return;

I cherry-picked this one and applied to drm-misc-next.

Thanks,

Melissa

>  
>  	vaddr = plane_composer->map[0].vaddr;
> -- 
> 2.35.1
> 

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